The inflow air is drawn in from the laboratory through the front aperture, mixing with the contaminated air from the working chamber before being drawn through air intake grilles on the work surface into the Activated Carbon/HEPA Filters*. The advanced multi-stage filter options ensure superior removal efficiency, making it suitable for diverse chemical processes and experiments.
Cleaned and free of contaminants, the airflow is then guided through internal ventilation where it is divided so just 40% is extracted to the duct extract system.
The remaining 60% is recirculated back into the working chamber creating an air-curtain across the front aperture to provide containment and operator safety. This method differs to traditional fume cabinets which rely purely on inflow velocity for protection.
Vitally, this green process results in a 60% decrease in extraction of conditioned laboratory air that with conventional ducted fume cabinets would be lost to atmosphere.